Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> fd041478d9b16aa708ba2c5cc4717daf0e7a37b2d1f68c2e59b6aca84bff50a5:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34